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Re: [PATCH] Don't fold away division by zero (PR middle-end/66127)


On Thu, May 14, 2015 at 11:48:55AM +0200, Richard Biener wrote:
> On May 14, 2015 10:10:35 AM GMT+02:00, Marek Polacek <polacek@redhat.com> wrote:
> >On Thu, May 14, 2015 at 09:59:49AM +0200, Richard Biener wrote:
> >> Do the patches allow us to remove the restrictions from the folding
> >patterns?
> >
> >With the c_fully_fold_internal patches there's no need to tweak any
> >match.pd
> >patterns.  So PR66127 + PR66066 are to be solved solely in the C FE. 
> >Is that
> >what you're asking about?
> 
> No, I'm asking whether we can remove the existing guards in match.pd.

Sorry, I don't know which guards exactly you mean (side effects?) so can't
verify, but as Jakub points out, I doubt we can remove anything at this point
because of C++ FE.  (c_fully_fold{,_internal} are never used in the C++ FE.)

	Marek


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